Powder coating material and fluorine-containing laminate
US8552115B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Mar 23, 2009 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Jan 30, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a powder coating composition free from hexavalent chromium to serve as a binder component but having an adhesion comparable to that of the primer based on chromium phosphate even if baked at elevated temperature for a long time. The present invention is a powder coating composition which contains a macromolecule compound (A) having amide group and/or imide group, an anti-oxidizing material (B) and a fluororesin (C), wherein an average particle size of the macromolecule compound (A) is smaller than 50 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.